Stereoscope.



N0. 857.539. PATENTED JUNE 18, 1907. H. E. RIGHMOND. i

'ST'ERBOSGOPBl APPLICATION FILED MAR. 30, 1906.

m: Hamers PETERS col, wAsHmaroN, D. c.,

State of New Jersey, have invented certain UNITED STATES PATENT HENRY E. RICHMOND, or wEsTwooD, NEW JERSEY. STEREOSCOPE.

No. 857,539. specineation of Letters Patent.

Application filed March 30, 1906. Serial No. 308,843.

Patented June 18, 1907.

provided on its under side with a groove D into which fits the shaft B inthe usual manner.

The part marked E represents the improved clamp which is struck up from sheet metalof the proper spring temper. The part lettered E is the main plate of the T0 all whom, t may concern:

Be it known that I, HENRY E. RICHMOND, a citizen of the United States, anda resident of Westwood, in the county of Bergen and new and useful Improvements in Stereoscopes, of which thefollowing is a specification. clamp which spans the cut-out My invention'relates to means for adjustcross-bar of the view holder through which ably securing the view holder of a stereothe shaft passes, and is secured to the under scope to the-shaft thereof, and also means for side of the cross-bar by screws or nails p keeping the view holder in true axial alineing through holes e in the ends thereof and ment on the shaft. p into the cross-bar. Extending from each One of the objects of my invention i's to side of the main plate, andv at right angles provide a cheap and efficient means for hold- I thereto, are two arms, the metal of which is ing the view holder to the shaft and which I cut through dividing each arm into two may be easily released from its grip onthe parts e1 e2. A corresponding part of each shaft to permit the view holder. to be readily of these arms forms a leaf spring which bears moved along the shaft to any desired against the under side of the shaft to hold the tion, and then when released, to hol view holder in its set position on the shaft. view holder firm-ly in said position. The other corresponding parts are turned Another object is to provide a guide or down to form finger guides for holding the view holder. in true .pressed together, axial alinement on the shaft.

Another object is to make this construction cheaply and out of as little material and with as little wasteas possible.

Other objects will appear from the hereinafter description.

The invention osithe release the leaf springs holderpto be moved longitudinally thereon.

In Figs'. 7 and 8 I lettered shown theother parts c1 turned down for this purpose.

is illustrated in the -accom- In order to raise the leaf springs from eripanying drawinfr, which forms a part of this application, and in the different views-of gagement with the underside of the shaft which the same reference character indicates w en the finger pieces are pressed together, the same part. itis necessary toweaken the mainl portion E Referring to 'the drawing, Figure 1 isa side of the clamp longitudinally thereof, so that a elevation of a stereoscope with the improvefulcrum for the lleaf springs may be formed. ment applied thereto. Fig. 2 isa longitudihis may be done in several ways. For exnal sectional view showing the clamp reample, the metal in this portion 1e may be leased fromits gripping position on theshaft. made thinner, as shown inV Figs. 7 and 8, by Fig. 3 is an under side view showing the redrawing it ou-t or removing a portion thereof, ferred construction of clamA and guide. or the meta-l may be entirely removed, form- Fig. 4 is a section on line 4 of ldig. 3. Fig. 5 ing a slot 2e therein, as shown is a perspective view of the alinement guide igiresof the drawing. shown iii Fig. .4., Fig. 6 is a constructionl Then the clamp isconstructed as described, the leaf springs will be readily released when similar to that shown in Figs. `3 and 4, but with two alining guides, both of which areinthe finger pieces are drawn together, the-said leaf springs moving on a fulcrum at the weaktegral with the main portion of the clam ig. 7 isaperspective view ofamodification. ened portion of the main part E of the clamp.

Fig. 8 is a section on line 8 of Fig. 7. Fig. 9

' perspective view of another modica- In order topermit the view holder to be moved freely on the shaft, it is customary to make the cut-out ortionin the cross-bar on which the shaft its, of greater length than the'width of the shaft.. This causes the view holder to move out of axial alinement on the tion.

The part marked A on the drawing represents a stereoscope of the ordinary construction. B is the shaft thereof and4 C the crossl 5 bar of the view holder. This cross-bar is pieces, which when` from bearing on theshaft to permit the view in the other IOO IIO

f alinement with the shaft, and prevent any tended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention, which, as a matter of language, might be said to fall therebetween.

Having now described my invention,

shaft. ln order to keep the view holder in proper alinement, T have provided with the clamp an alining means, which guides and holds the view holder in proper alinement with the shaft. This guide F may be stamped out of the same kind of metal from what which the clamp is made and consists of a l claim as new and desire to secure by Letfla't disk F having a strip F? upturned at ters Patent is: a right angles thereto. When this guide is in l. A clamp consisting of a main member,

position, the upturned strip rests in the enlargement of the cut-out part of the crossbar, and the disk thereof is between the clamp and the under surface of the cross-bar. This disk portion is provided with a hole f which registers with the hole e, and through which 'a nail or screw which fastens the clamp to the cross-bar passes. The upturned portion F2 is curved, 'the ends resting against the edge of the shaft and the middle portion resting against the shoulder of the cut-away portion of the cross-bar. This construction firmly holds the cross-bar and shaft in engagement laterally, and prevents any lateral clamping means connected thereto and finger members extending directly from the main member, said main member being so constructed as to permit the clamping means to be moved when the Jringer members are moved toward each other.

2. A clamp consisting of a main member, clamping means connected thereto and finger members extending therefrom, a part of the main member being weakened so as to permit the clamping means to be moved when the finger members are moved toward each other. ggg

3. A clamp consisting of a main member,

play. instead of making his guide separate clamping members connected thereto, and from the clamp, l may stamp it out with the finger members extending therefrom, said clamp, forming the guide integral with the main member being longitudinally slotted to end of the main part E of the clamp, as shown in Fig. 6, and instead of providing the clamp with only one guide as shown in Figs. 3 and fl, l may form a guide `on each end of the main portion E of the clamp, as shown in Fig. 6 of the drawing. l may also use only the curved strip F2 and tack it in the slot of the cross-bar between the cut-away portion of the cross-bar andthe shaft. This forms a convenient and simple spring guide to hold the cross-bar and shaft in alinement.

ln Fig. 9 l have shown a modified construction of guide. Tn this construction instead of providing the clamp with a guide placed between the shaft and the shoulder of the cut-away portion of the cross-bar, l form permit the clamping member to be moved each other. f

4. In a stereoscope, a shaft, a cross-bar slidably connected thereto, a clamp secured to the cross-bar, said clamp consisting of a main member, leaf springs extending at right angles from said main member and bearing upon the shaft, and Enger pieces connected to the main member, said main member being weakened longitudinally to permit the leaf springs to be raised out of contact with the shaft when the finger members are moved toward each other.

5. In a stereoscope, a shaft, a cross-bar slidably connected thereto, a main member at the ends of the leaf springs e2, a cross strip of a clamp secured to the cross-bar, leaf e3 and upturn the ends thereof to form guide springs extending from said main member fingers e4. These guide fingers rest against and bearing upon the shaft, and finger pieces the edges of the shaft at four points. The connected to said main'member, said main distance between the inner surfaces of each member being slotted longitudinally to perpair of these guide lingers is just the width of mit the leaf springs to be moved out of conthe shaft. i As they bear upon both sides of the shaft on opposite sides of the cross-bar, they will securely hold the cross-bar in axial tact with the shaft when the finger pieces are moved toward each other.

6. Tn a stereoscope, a shaft, a cross-bar slidably mounted thereon, a main member of a clamp secured to the cross-bar, leaf springs extending from said member and bearing upon the shaft, finger pieces connected to the main member, said main member being constructed to permit the leaf springs to be withdrawn from contact with the shaft when the finger pieces are moved together, and a guide connected to the clamp to hold the cross-bar in alinement with the shaft.

7. In a stereoscope, provided with aslot on into w 'ch the shaft lateral movement between the shaft and the said cross-bar, as is apparent.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention could be made without departing from thereof, I intend that all matter l contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative, and not in a limiting sense.

l desire it also to be understood that the language used in the following claims is ina shaft, a cross-bar the under side thereof fits, said bar being when the finger members are moved toward slidably mounted on the shaft, a Clamp havthe edge of the shaft and the shoulder of the ing a main member spanning said slot and slot.

secured to the cross-bar, leaf springs integral In witness whereof I have hereunto set m with said member and bearing on the shaft, hand at vN ew York in the county of New I5 nger pieces integral with the main member, York and State of New York7 this 27th day said main member being provided with a slot of March, 1906.

longitudinally thereof so that the leaf springs may be raised from the shaft when the finger HENRY E' RICHMOND' pieces are moved toward each other, a guide In presence of-` seoured to the cross-bar, said guide having an T. R. RICHARDS,

upturned member Seated in the Slot between H. J. LILLIE. 

